Date: Thu, 20 Nov 2003 12:25:18 +0100 From: David Israelsson <david@israelsson.org> To: freebsd-java@freebsd.org Subject: Re: RMI on FreeBSD Message-ID: <877k1vb7tt.fsf@poh.gnapp.org> In-Reply-To: <20031120095224.GR11487@starjuice.net> (Sheldon Hearn's message of "Thu, 20 Nov 2003 11:52:24 %2B0200") References: <87fzgjbdnq.fsf@poh.gnapp.org> <20031120095224.GR11487@starjuice.net>
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Sheldon Hearn <sheldonh@starjuice.net> writes:
>> Has anyone had any success with RMI on FreeBSD? I can't get the most
>> simple test program to work.
>
> RMI has to be working for some cases at least, because it's used heavily
> by JBoss, which works on both -CURRENT and -STABLE (for some definition
> of works).
>
>> The problem is registering to the naming service.
>> java.rmi.Naming.rebind() takes 75 seconds (socket timeout?), and after
>> another 45 seconds the program exits. No exceptions are thrown.
>
> Sounds like a "network problem", which I realize doesn't help you very
> much. If you can find out what TCP port on what host it's trying to
> communicate with, you have a chance.
>
> The first thing I always do in these situations is rule out IPv6. If
> you don't use it, turn it off to rule it out.
>
I've set net.inet6.ip6.v6only to 0, and I've tried to let the program
contact both localhost and 127.0.0.1 (the latter has no ipv6
equivalent). It does connect, because if I try to run the program
without having started the rmiregistry I get
java.net.ConnectException: Connection refused.
I also checked the network traffic when I tried the same program on a
Linux box where it's working ok.
1: myclass -> rmiregistry: RMIK
2: myclass <- rmiregistry: N 127.0.0.1
3: myclass -> rmiregistry: (sends ip addr followed by the stub (and
possibly more, I don't know, it's all
binary))
4: myclass <- rmiregistry: (answers with cryptic binary data)
(wait for some time)
5: myclass -> rmiregistry: EOF
6: myclass <- rmiregistry: EOF
(disconnect)
On my FreeBSD box, the 75 seconds of waiting appears between step 3
and 4.
How do I turn off ipv6 completely?
/David
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